US2671956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underframe turning machine
Assignee: Individual
•
Filing: 1949-06-04
•
Granted: 1954-03-16
•
Expires: 1969-06-04
Abstract
No abstract record available.
Inventors
- 👤 Fred C Krietemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:14
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/0007; B23; B23K; B23K37/00; B23K37/04; B23K37/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US946636A
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US1443890A
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AT93250B
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US1733988A
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US2186478A
Cited
US2271444A
Cited
US2320079A
Cited
US2399087A
Cited
US2468326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |